I tried using sucrose instead of dextrose or maltodextrin, and it was WAY too sweet. And I'm not concerned about cost because I get my dextrose and maltodextrin for cheap as hell. I would never get it off of a site like proteinfactory or the rest. They rip you off for cheap ass sugar.
Honestly though, I didn't see much benefit from using it, and I just mix my protein powder with milk and nestle quik and i get plenty of carbs from that.